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Significant Accounting Policies And Use Of Estimates (Summary Of Changes In Level 3 Liabilities) (Details) (Derivative Liabilities [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2011
Derivative Liabilities [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance 3/31/2011	$ 201
Exercise of warrants	(70)
Change in fair value	10
Balance 6/30/2011	$ 0

Amount of increase (decrease) of liabilities measured at fair value on a recurring basis using unobservable inputs (level 3) which have taken place during the period. Such increase (decrease) may be comprised of changes in fair value (gains or losses) whether realized or unrealized that have been included in earnings, changed net asset value, or other comprehensive income (a separate component of shareholders' equity); purchases, sales, issues, or settlements of assets; and net transfers in to or out of this category within the fair value hierarchy.

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